APA (7th ed.) Zitazioa

STRAHLER, A. N. (1971). The earth Sciences. Harper & Row.

Chicago Style (17th ed.) Zitazioa

STRAHLER, Arthur N. The Earth Sciences. New York: Harper & Row, 1971.

MLA (9th ed.) Zitazioa

STRAHLER, Arthur N. The Earth Sciences. Harper & Row, 1971.